Well-drilling machine.



No. 688.220. Patented Dec. 3, I90l. G. ZINK.

WELL DRILLING MACHINE.

(Application filed Mm. 20, 1901,)

(Na Modal.)

UNTTED STATES i FFICE.

PATENT WELL-DRILLING MACHINE.

SPECIFZLGATION forming part of Letters Patent No. 688,220, dated December 3, 1901.

Application filed March 20, 1901. Serial No. 52,026. (No model.) i

To to whom it may concern:

Be it known that I, GEORGE ZINK, a citizen of the United States, residing at Shady Bower, in the State of Maryland, have invented new and useful Improvements in Turners for Well-Drilling Machines, of which the following is a specification.

My invention relates to devices for turning drills during the operation of boring deep wells, and has for its object the construction of a device of this character which will be double-acting and of simple construction and efficient in operation. This object is accomplished by the novel construction described in this specification and claimed and illustrated in the accompanying drawings, forming a part thereof, in which- Figure 1 is a side elevation of my turning device. Fig. 2 is a vertical section on the line 2 2, Fig. 1. Fig. 3 is a longitudinal section on the line 3 3, Fig. 1. Fig. 4 is a section on the line 4 4, Fig. 1, with the sleeve 9 removed. Fig. 5 is a detail plan of the ratchet.

Like numerals of reference designate like parts in the diiferent views of the drawings.

The numeral 1 designates a rectangular frame, which has cross-bars 2 and side bars 3 and serves to support the other parts. An eye 4, having a threaded shank 5 formed integral therewith, serves as a handle or means for attaching the walking-beam for operating the drill. The shank 5 passes through an aperture 6 in the upper cross-bar 2 and is secured by nuts 6. A spring-actuated catch 7, which is set to engage a groove '7 in the bar 2, serves to hold the eye, from turning. This catch can be disengaged and the eye turned in any position desired.

The lower cross-bar 2 is apertured at 8, and fitting snugly this aperture is a sleeve 9. The sleeve 9 has a flange 10 formed integral therewith, which bears on the lower crossbar 2. A nut 11 fits a threaded portion 11 on the sleeve, and in combination with the flange 10 holds the sleeve 9 in place. To provide additional holding against turning, a key 12 is fitted in a groove 13 in the frame 1 and engages a groove 13 in the sleeve 9. The sleeve 9 has on its ends two series 14 and 15 of beveled radial teeth on the upper and lower ends, respectively. The teeth 14 are each beveled at 14 and are square at 14 while the teeth 15 are similar and each beveled at 15 and square at 15". A smooth cylindrical shank or rod 16 is slidingly mounted in the sleeve 9 and has formed on its lower end a head 17 for holding the drill-rod. Keyed 0n the shank 16 just above the head 17 is a collar 18, which bears a series of beveled teeth 19 similar in every respect to the teeth 14 and 15 and located to mesh with the teeth 15. A second collar 20 is slidingly mounted on a key 2O on the shank 16 at its upper end, which collar has a series of beveled teeth 21 similar to the other series already described and positioned to mesh with the beveled teeth 14. It is important to note that the collars 18 and 20 are so setthat the teeth thereon are notin linethat is, so that if the rod 16 were reciprocated back and forth without turning, it the teeth 15 and 19 then meshed exactly, the teeth 14 and 21 would be out of mesh justone-half-a-tooth interval. This arrangement is the secret of the turning of the drill, which the device is intended to accomplish.

A cross-head 22 is mounted to slide between the side bars 3 of the frame 1, which are cut out at 23 to accommodate the cross-head 22. This cross-head 22 is loosely mounted on the collar20 just under a ratchet-wheel 25,formed integral with the collar 20. Ball-bearings 24 are provided, which are seated in the upper face of the cross-head 22. A downwardlyprojecting rim 26, integral with the cross head, supplies convenient means for attaching a coiled spring 27, which surrounds the collar 20 and the upper end of the sleeve 9 and bears on the lower cross-head 2 of the frame. This construction holds the crosshead 22 up against the ratchet 25. A pawl 28 is pivoted on the cross-head 22, is supplied with a spring, and is located to engage the teeth on the ratchet 25 to restrict the movement of the drill to rotation in but one direction. There are double the number of teeth 25 as there are teeth 14 or 15. The head of the shank 16 is fitted with a large nut 29, mounted on a threaded portion 30 on the shank.

In operation a drill is fitted into the head 17 and suitable means for working the drill attached to the eye 4, which must be held in one plane against turning to insure the turn- ICO ing of the drill. The eye 4is then raised,which will cause the weight of the whole drilling apparatus to be thrown on the spring 27, thereby overcoming its expansive power and bringing the .teeth 1-1 and 21 into contact and forcing them to intermesh. Since the ratchet 25 has double the number of teeth on it as there is in one of the series 14 or 15 on the sleeve 9, the pawl will always follow n p the movement of the drill and feed one tooth. On the downstroke of the drill as soon as the upward pull on the eye 4 ceases the spring 27 will overcome the force opposed toil; and

will bring the frame 1 down and seat the beveled teeth 15 on the teeth 19 and force them into mesh, thereby revolving the drill one-.

half-a-tooth width and advancing the pawl one tooth, after which the operation is repeated.

I do not wish to be limited as to details of construction, as these may be modified in many particulars without departing from the spirit of my invention.

Having thus described my invention, what I'claim as new, and wish to secure by Letters Patent, is-

1. In a device of the class described, the combination, of a frame, a cross-head mounted between the side bars of said frame, a shank slidingly mounted in said frame and passing through an aperture in said crosshead, a sleeve surrounding said shank and having a series of beveled teeth on each end, a collar keyed on said shank and bearing a series of beveled teeth arranged to be brought into mesh with the said beveled teeth on the lower end of said sleeve, a collar slidingly as described.

2. In a device of the class described, the combination, with a frame having parallel side bars, a cross-head mounted between the side bars of said frame, a shank slidingly mounted in said frame and passing through an-aperture in said cross-head, a sleeve rigidly mounted in said frame and having a series of beveled teeth on each of its two ends, a collar keyed on said shank and having a series of beveled teeth on its, upper end arranged'to be brought into meshwith the teeth on the lower end of said sleeve by revolving the shank, a collar slidinglymounted onv the upper end of said shank and bearing a series of teeth on its lower edge arranged to be brought into mesh with the teeth on theupper end of'said'sleeve, by turning said shank, a ratchet slidingly mounted on said shank, a pawl mounted on said cross-head and engaging said ratchet, and a spring surrounding said shank and bearing against said crosshead, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

GEORGE ZINK.

Witnesses:

F. G. RADELFINGER, BENNETT L. JONES. 

